There has been a lot of discussion about great on-topic and off-topic questions for a proposal. Joel's latest analysis shows that Area 51 has improved the process of selecting these great example questions. This seems to be the easy part as it is normally obvious whether a question is on-topic of off-topic.

When (or where) are the questions that fall in the grayarea going to be voted on or discussed?

It seems like these questions should be discussed/explored before opening the site up so there is somewhat of a consensus in the community before these types of questions get asked.